Smear the other candidate while the getting's good! Or be civil and nice, IDK.
How about that FBI! They totally put their finger on the scale with their letters to Congress. Today they said they didn't change their earlier decision about Hillary indictment. It's almost like they know, from evidence in their possession, that DC is a shit show and would rather have Trump in; but are also scared to take action...why else would they have announced the potentially pertinent evidence the way, and when, they did...you could argue it was a partisan move but why would Comey basically throw away his job on a play to back an underdog?
Note the repeated use of 'Secretary':
https://www.washingtonpost.com/apps/g/page/politics/fbi-directors-letter-to-congress-after-review-of-newly-discovered-clinton-emails/2129/?tid=a_inl
Ruling out Secretary of state time, that leaves a lot of other time for dirt. He also doesn't say case closed anywhere (despite what the media is spinning)...they're holding their hand close until after the election.
Also relevant:
Concern/damage control mode?
https://www.yahoo.com/news/fbi-director-comey-man-integrity-white-house-200823679.html
Calling bluff?
http://time.com/4555088/president-obama-fbi-hillary-clinton-email/